• Patent Title: Active filter device and circuit arrangement comprising an active filter device
  • Application No.: US15310011
    Application Date: 2015-04-28
  • Publication No.: US10069480B2
    Publication Date: 2018-09-04
  • Inventor: Andrew Tucker
  • Applicant: EPCOS AG
  • Applicant Address: DE Munich
  • Assignee: EPCOS AG
  • Current Assignee: EPCOS AG
  • Current Assignee Address: DE Munich
  • Agency: Slater Matsil, LLP
  • Priority: EP14167918 20140512
  • International Application: PCT/EP2015/059182 WO 20150428
  • International Announcement: WO2015/173006 WO 20151119
  • Main IPC: H03B1/00
  • IPC: H03B1/00 H03H11/12 H02M1/12 H02M1/44 H02K11/02
Active filter device and circuit arrangement comprising an active filter device
Abstract:
An active filter device and a circuit arrangement comprising an active filter device are disclosed. In an embodiment the active filter device includes sensor terminals for applying a sensor signal depending on a sensed noise signal, an output terminal for providing a correction signal that is suitable for reducing the noise signal, a signal source adapted for generating a correction signal and a high-pass filter coupled between the sensor terminals and the signal source, wherein the correction signal is generated with a dependence on a high-pass filtered sensor signal.
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